Largely manufactured from recycled glass (e.g. windscreens) and mineral base materials such as sand and without the use of binding agents. The ingredients are melted into molten glass, which is cooled and crushed into a fine powder. The powdered glass is poured into molds and heated (below the melting point) in a "sintering" process that causes the particles to adhere to one another. Next, a small amount of finely ground carbon-black is added and the material is heated in a "cellulation" process. Here, the carbon reacts with oxygen, creating carbon dioxide, which creates the insulating bubbles in the (material). CO2 accounts for more than 99% of the gas in the cellular spaces.
Cellulose insulation is a material made from recycled newspaper. The paper is shredded and inorganic salts, such as boric acid, are added for resistance to fire, mould, insects and vermin. The insulation is installed either blown or damp-sprayed depending on application.
Wood fibre
The success of wood fibre insulation derives from an attractive environmental profile combined with a whole bag of functions including rigid insulation, sheathing and sarking for timber frames, roofs and flooring as well as flexible insulation for studs and rafters.
Wood of course is renewable, it sequesters carbon during its growth and product production is relatively free from pollution. The insulation value of wood fibre boards is not as dimensionally efficient as some of the orthodox petro-chemical materials - but it's no slouch either - typically coming in with a 'k value' range of between 0.038-0.043 W/mK depending on format.
Hemp
Hemp fibres are produced from hemp straw of the hemp plant. Most hemp is imported, but an increasing amount of home-grown crop is becoming available. Hemp grows up to a height of nearly 4 metres within a period of 100-120 days. Because the plants shade the soil, no chemical protection or toxic additives are required for hemp cultivation. The product is composed of, usually, 85% hemp fibre with the ballance made up of polyester binding and 3-5% soda added for fire proofing.
Straw
Straw is an agricultural by-product, the dry stalks of cereal plants, after the grain and chaff have been removed. Straw makes up about half of the yield of cereal crops such asbarley, oats, rice, rye and wheat.
Full End Caps Pair to suit Sill Type 721 is a pair of aluminium push fit end caps to fit the type 721 range of over-sill eaves flashing and window sill extenders.
The WEC721 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides.
This produ..
Full End Caps Pair to suit Sill Type 721
Push fit end caps to fit the type 721 range of over-sill
To suit WEC721 eaves flashing and window sill extenders
Left and right handed end caps powder coated white
Thin coat rendering and most conditions requiring the weathering
Full End Caps Pair to suit Type 731 Sill is a pair of aluminium push fit end caps to fit the type 731 range of under-sill eaves flashing and window sill extenders.
The WEC731 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides.
This prod..
Full End Caps Pair to suit Sill Type 731
Push fit end caps to fit the type 731 range of under-sill
To suit WEC731 flashing and window sill extensions
Left and right handed end caps powder coated white
Thin coat rendering and most conditions requiring the weathering
Full End Caps Pair to suit Type 741 Window Sill is a pair of aluminium push fit end caps to fit the type 741 range of window sill extensions.
The WEC741 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides.
This product is used for EWI (e..
Full End Caps Pair to suit Sill Type 741
Push fit end caps to fit the type 741 range of window sills
To suit WEC741 flashing and window sill extensions
Left and right handed end caps powder coated white
Thin coat rendering and most conditions requiring the weathering
Full End Caps Pair to suit Type 751 (o’sill) Window Sill is a pair of aluminium push fit end caps to fit the type 751 range of window over sill extensions / extenders.
The WEC751 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides.
This ..
Full End Caps Pair to suit Sill Type 751
Push fit end caps to fit the type 751 range of window sills
To suit WEC751 flashing and window sill extensions
Left and right handed end caps powder coated white
Thin coat rendering and most conditions requiring the weathering
Full End Caps to fit Type 761 Aluminium Over Sill Extender is a pair of aluminium push fit full end caps to fit the type 761 range of window over sill extensions / extenders.
The WEC761 end caps pair (left and right handed) is a non-corrosive aluminium profile powder coated white on both sides.
..
Full End Caps Pair to suit Sill Type 761
Push fit end caps to fit the type 761 range of window sills
To suit WEC761 flashing and window sill extensions
Left and right handed end caps powder coated white
Thin coat rendering and most conditions requiring the weathering